Optical amplifier
文献类型：专利
| 作者 | NAKAZAWA, SATORU; MURAKAMI, YASUNORI |
| 发表日期 | 2005-03-22 |
| 专利号 | US6870667 |
| 著作权人 | SUMITOMO ELECTRIC INDUSTRIES, LTD. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Optical amplifier |
| 英文摘要 | Optical amplifier according to the present invention is provided with an EDF, a light source device having a semiconductor laser element that generates an excitation beam and a housing that accommodates this, and an optical multiplexer having an input optically coupled with light source device, an input that receives the signal beam, and an output that provides an excitation beam and signal beam to EDF. Semiconductor laser element has an active layer, provided between cladding layers and including compound semiconductors of mutually different conductivity types, that includes a compound semiconductor and is constructed such that the oscillation wavelength at 20° C. of this semiconductor laser element is less than 1470 nm but not less 1440 nm. If this is done, the change of gain in EDF with respect to oscillation wavelength can be made satisfactorily small and the NF can be made satisfactorily small. |
| 公开日期 | 2005-03-22 |
| 申请日期 | 2002-11-27 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/77097]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | SUMITOMO ELECTRIC INDUSTRIES, LTD. |
| 推荐引用方式 GB/T 7714 | NAKAZAWA, SATORU,MURAKAMI, YASUNORI. Optical amplifier. US6870667. 2005-03-22. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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